Pimozide and Zileuton interaction

Pimozide and Zileuton: the Pimozide prescribing label flags this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.

Major

Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.

What the FDA labels say

From the Pimozide label · effective 2026-08-12

Major

Other drugs that are relatively less potent inhibitors of CYP 3A4 should also be avoided, in view of the risks: e.g., zileuton, fluvoxamine.

Contraindicationsnames ZileutonView label on DailyMed

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.